John s



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rem; SQLIPPS, OF ,BROOKLYMI-NEW YORK, Asstewou; To HIMSELF AND EDWIN ssNsoN, OF E YORK some. I Le -8 Patent 1%, 0,755, datedJenuary 1, 1867..

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4P0 AI L-wHeM IT MAY CONCERN; l

Be it known that I, JOHN S. LIPBS,'OY Brool clyn, .in the county ofKings, and State-of New Yerk, he

{invented or discovered a certain newend useful'Compesigiou applicableas Artificial Fuel, and us a. nen-eonduetor of heet for steenyboilersendother purposes, of which thefiollowiug is a, full, clear, and exactdescription ofmr .menner in which the seine is or may be compounded;

wMy invention consists in e certain admixture of eoal-dust,-eitheranthracite or bituminous, or charcoal or coke, and dextrine, with pitchreduced to a. powder. For an ertifieiel fuel I take powderedor'fineeoel-dust in preference to charcoal-or eel-2e, say one ton of twothousand (2,000) pounds,inixedwith-twenty-fiye (25) pounds.

more or less, of .piteh reduced-to a fine powder "and sifted; To these,when well mixed, zydd a. solution -of about firle pounds'of dextrine inabout fifteen (15) gallons of water, and mix the whole well, so as tobring the some into a. plastic moss, when I press it into bricks, lumps,or cakes-of the desired form, and first dry by expesure tothe atmosphereand afterwards beke'lzy subjecting the mess .to a strong heat of,-,say300 Fahrenheit. Thepowderedpiteh, unlike tar or other equivalent fluid,readily and thoroughly inixes withthe ceuLdust, end being-nielte'dby thebakin'g, ee'uses eperfeet adhesion of the particles of eoeLduSt, whilethe dextrine, which hes held the partielestogether until the melting ofthe pitch, cerbonizing at the temperature specified, becomes in a.measure Wotan-proof, so that it is little afi'eeted by rain or othermoisture; Thus it'will be understoqd'thut in the manufacture thedextrine and powdered pitch separately act to produce like resultsduring the process ofgnanufaeture, viz, to heldthe particles of coaltogether, while both afterwards serve, in comhinotion with the admixedwith dextr'ine eud'powdered pitch, uud baked, essentially as hereinso't'forth coal-dust, to produce a, firm, inflammable, indedveuto.geous4fuel. In the menufeeture of cement, as a noneend'uotor ofheat for coating steam beilers,steam pipes, and-for other purposes, itmaybe preferable to use pewdered charcoal or coke injplaee of cool-dist,and theIproportions of dextrine 'und pitehbe more or loss varied,according to the purpose the plastic mgiss so produced is designed to-beused for. o I

WhetI claim as my invention, and desireto secure by Letters Patent, is-

The composition of matter substantially as herein described, andeomposedof coel,jcol e, or ehai'coul-ilfifet,

JOHN s. IiIPPS;

' -Witnessesi J W. 000M118, G. W. REED.

